Finding the Fourth Proportional to 13,635,899.12, 18,817,940.07 and 7,441,344.99
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Solution
The fourth proportional to 13,635,899.12, 18,817,940.07 and 7,441,344.99 is: 10,269,273.98
Step by Step Solution
- Step 1: Write the proportion equation
13,635,899.12 : 18,817,940.07 = 7,441,344.99 : x - Step 2: Convert to fraction form
13,635,899.12/18,817,940.07 = 7,441,344.99/x - Step 3: Cross multiply
13,635,899.12x = 18,817,940.07 × 7,441,344.99 - Step 4: Simplify right side
13,635,899.12x = 140,030,784,062,014.75 - Step 5: Solve for x
x = 140,030,784,062,014.75/13,635,899.12 - Step 6: Final answer
x = 10,269,273.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.